Self-isolating cross-coupled sense amplifier latch circuit
US4053873A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1976 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Jun 30, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/419
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is a self-isolating cross-coupled sense amplifier latch circuit having five enhancement mode field effect transistor devices and two depletion mode field effect transistor devices. The first and second field effect transistors form a cross-coupled pair with true and complement outputs being available at the cross-coupled nodes. A third field effect transistor is connected to a common connection between the source electrodes of the cross-coupled pair and is used to establish a race condition after a small difference in potential has been applied to the aforementioned output nodes. A pair of depletion mode devices are connected as diodes between a positive potential (VH) and each of the output nodes, respectively. Each of the output nodes is connected to a respective bit line of a column of memory cells through enhancement mode field effect transistors connected as third and fourth unidirectionally conducting devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.